Water Damage Restoration Technician (WRT) Certification Practice Test

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When the air temperature increases, what happens to its capacity to hold water vapor?

  1. It decreases

  2. It remains the same

  3. It can hold less water vapor

  4. It can hold more water vapor

The correct answer is: It can hold more water vapor

As the air temperature increases, its capacity to hold water vapor increases as well. This is due to the relationship between temperature and the saturation vapor pressure of water. Warm air molecules have more energy and are able to accommodate more water vapor before reaching a point of saturation. Therefore, the higher the temperature, the greater the amount of moisture air can hold. This principle is crucial in understanding humidity levels, condensation, and the behavior of air in various environmental conditions. In practical applications, such as water damage restoration, recognizing how warmer air can hold more moisture helps professionals manage drying processes effectively.